baber/WOPTO huggingface dataset:
Patent JP-S63175238-A (JP)
Title: Optical head device
Inventor: ONO YUZO
IPC: G11B7/135
Filed: 1987-01-16
Abstract: PURPOSE:To improve the optical availability of an optical head device by providing a 1/4 wavelength plate between an image forming lens and a reflecting grating lens which splits the reflected light received from a recording medium to lead them to each photodetector. CONSTITUTION:The light 101 radiated from a semiconductor laser 1 reaches a reflecting grating lens 27 in the form of the P polarized light in the vibrating direction vertical to a boundary light 27a of the lens 27. The diffraction efficiency of the P polarized light is set at a low level with the diffraction efficiency of the S polarized light set at a high level for the lens 27. Therefore the P polarized incident light beam has its <=20% diffraction efficiency with the lens 27 and passes through the lens 27 about 80% on its going route. Then the P polarized light is transmitted through a 1/4 wavelength plate 26 and focused on a disk surface 4 in the form of the circular polarized light. The light beam reflected on the surface 4 has the rotational direction of its circular polarized light which is inverted to the incident light and is turned into the linear polarized light of the S polarized light which is orthogonal to the polarizing direction of the light beam of the going route via the plate 26 to be diffracted about 100% through the lens 27. Thus the high optical availability is secured with an optical head device.
Patent JP-H04240804-A (JP)
Title: Polarizing element
Inventor: JIN JIEIU
IPC: G02B5/30
Filed: 1991-01-25
Abstract: PURPOSE:To convert incident light having random polarization components to exit light having only the polarization component of one direction with substantially no losses by using double refractive materials and building periodic structures so as to satisfy the condition that the pitch of the repeating units thereof is sufficiently smaller than the wavelength of light waves. CONSTITUTION:This element consists of the periodic structures consisting of the alternate repetitions of the double refractive material layers 101 and 102. Namely, this element has the one-way periodic structures consisting of the alternate repetitions of two kinds of the materials. The relation t1+t2<<lambda is satisfied when the thickness of the one material in the periodic units is designated as t1 and the thickness of the other as t2 and the wavelength of the light as lambda. In addition, both materials have double refractiveness.
Patent JP-S56104926-A (JP)
Title: Epoxy resin composition for sealing electronic parts
Inventor: KUBOTA YOSHIHIRO
IPC: C08K5/07
Filed: 1980-01-25
Abstract: PURPOSE: To provide an epoxy resin compsn. which improves the corrosion of wiring or electrodes, consisting of an epoxy resin, a phenolic novolak, a curing catalyst and at least one member selected from acridine, 1,2-naphthoquinone, alizarin and derivatives thereof.  
     CONSTITUTION: There is provided a compsn. consisting of an epoxy resin (A), a phenolic novolak (B) contg. at least two hydroxyl groups in the molecule, a curing catalyst (C) and at least one member (D) selected from acridine, 1,2-naphthoquinone, alizarin and derivatives thereof. Examples of the curing catalysts are imidazole, 2-methylimidazole, 2,4-dimethyl-imidazole and 2-phenyl-4,5-dihydroxymethyl- imidazole. The componenet (D) is effective for reducing corrosion, and functions as a fluidity-improver during molding. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H10203875-A (JP)
Title: Production of ceramic sintered compact
Inventor: UCHIUMI KENTARO
IPC: C23C14/34
Filed: 1997-01-20
Abstract: PROBLEM TO BE SOLVED: To obtain a ceramic sintered compact in a high yield by making an R-processing of a specified length or longer on the edges of a ceramic powder compact followed by sintering the compact so as not to develop any cracks on the edges of the (un)sintered compact. SOLUTION: This ceramic sintered compact is essentially composed, for example, of zinc, aluminum and oxygen, or strontium, titanium and oxygen, and obtained by making an R-processing of 0.2-3mm long on the edges of a ceramic powder compact followed by sintering the compact. For a sintered compact essentially composed of indium, tin and oxygen (ITO), the amount of tin oxide is set at 5-15wt.% so as to decrease the resistivity of an ITO thin film formed by sputtering. Specifically, this ceramic sintered compact is obtained by the following process: mixed powder or solid solution powder of desired ceramic stock powder is ground and subjected to compaction, as necessary, pressed into a mold together with water and a binder to form a compact, the respective edges of which are subjected to R-processing >=0.2mm in length followed by conducting a sintering operation.
Patent JP-S63175325-A (JP)
Title: Charged particle detecting device
Inventor: AIHARA RYUZO
IPC: G01T1/28
Filed: 1987-01-16
Abstract: PURPOSE:To improve detection efficiency of charged particles coming from a sample by applying a potential to a metallic cylindrical matter so as to repulse the charged particles. CONSTITUTION:A positive potential supplied from a power source 6 is applied to a charged particle incident part B of a micro channel plate MCP 4. A positive electric field is generated in a space formed between the incident part B and a surface of a sample 3. Therefore, the charged particles coming from the sample 3 are drawn up by the positive electric field and detected by the MCP 4. A negative potential, which is supplied from a power source 9 and whose absolute value is smaller than the positive potential, is applied to a metallic cylindrical matter 5, so that charged particles moving toward an optical axis and also those attracted into a leakage magnetic field of an object lens 1 are repulsed by this negative electrode. Hence, the charged particles generated at a contact hole 3R do not advance centrally in the direction of the cylindrical matter 5, but they advance to the incident part B of the MCP 4. Resultingly, detection efficiency of charged particles at the MCP 4 can be improved.
Patent JP-H09199555-A (JP)
Title: Semiconductor device and its testing method
Inventor: SATO SHINZO
IPC: H01L21/66
Filed: 1996-01-19
Abstract: PROBLEM TO BE SOLVED: To make it possible to reduce the voltage drop at the time of testing without lowering the integration degree by bringing a contact finger for supplying power into contact with a pad except the pad of the outermost periphery disposed in at least its chip area, and testing it. SOLUTION: A semiconductor substrate 1 in which the surface formed with a plurality of chip areas 10 is provided, electronic circuits equivalent to each other are formed in the areas 10, and pads 11, 12a to 12c for taking electric connections with an electronic circuit in a chip area 10 and an external unit are disposed in two-dimensional manner on each area 10 is prepared. Contact fingers are brought into contact with the plurality of pads 12a to 12c of the part of one area 10 of the board 1, and the circuit formed in the area 10 is tested. In this case, the finger for supplying the power is brought into contact with the pad 12b except the pad of the outermost periphery disposed at least in the area 10, and tested.
Patent JP-S60150512-A (JP)
Inventor: HORIUCHI KENICHIROU
IPC: H01H1/24
Filed: 1984-01-18
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H04248848-A (JP)
Title: Forming polyolefin-based resin composition
Inventor: KIRIE YOZO
IPC: C08J9/06
Filed: 1991-01-25
Abstract: PURPOSE:To obtain a foaming polyolefin-based resin composition having excellent moldability and resistance to thermoelasticity and suitable for producing a crosslinked polyolefinic resin foam, and a crosslinked foam in which the above-mentioned composition is crosslinked and foamed. CONSTITUTION:A foaming polyolefin-based resin composition containing 40-80 pts.wt. polypropylene having 0.5-12 melt index, 60-20 pts.wt. polyethylene having 15-45 melt index and 0.91-0.94 density (g/cm<2>), a thermally decomposable foaming agent and a crosslinking assistant, and a crosslinked polyolefin-based resin foam obtained by crosslinking and foaming the above-mentioned resin composition.
Patent JP-H06219175-A (JP)
Title: Differential controller of vehicle
Inventor: SHITANI YUJI
IPC: B60K17/346
Filed: 1993-01-21
Abstract: PURPOSE:To provide an accurate differential control property according to the change in a specific condition without providing a number of control map groups by providing a first control map for rapidly increasing the differential control force from the time of low differential rotation, by providing a second control map for smoothly increasing the differential control force, and by choosing the control maps according to a specific condition. CONSTITUTION:A first control map having a first differential control characteristic curve for rapidly increasing the differential control force from the time of low differential rotation, and a second control map having a second differential control characteristic curve for smoothly increasing the differential control force, are provided on a control unit 43 for differential gear. The car wheel velocity of front and rear wheels 16, 18 in the left and right is calculated based on the input signal from each car wheel velocity sensor 30, to calculate the differential rotation speed for each differential gear. The differential control force for each differential gear is calculated based on the calculated value of the differential rotation speed, and the control current value to be supplied to the solenoid of an electromagnetic multiple disc clutch is calculated.
Patent JP-H0569592-A (JP)
Title: Optical printer head
Inventor: UNO SHIGEKI
IPC: B41J2/45
Filed: 1992-01-21
Abstract: PURPOSE:To reduce an optical energy to be emitted reversely and to efficiently emit a forward optical energy by a method wherein an angle of a light-emitting end face of an end face emitting-type EL element to a substrate is specified, and an optical energy reflecting area is formed in the front of the light-emitting end face. CONSTITUTION:An optical printer head 1 is formed by arranging a plurality of end face emitting-type EL elements 21 in an array form on a substrate 11 made of a glass or the like. The EL element 21 consists of a lower electrode 31, a light emitting layer 51, a pair of dielectric body layers 41, 61 clamping the light emitting layer 51, and an upper electrode 71. In this invention, a light- emitting end face 111 of the EL element 21 is inclined at an angle of 90 degrees or less to a main surface of the substrate 11. In this manner, an optical energy to be emitted from the light-emitting end face 111 in the reverse direction to the main surface of the substrate 11 is reduced. In addition, the surface of the substrate 1.1 in the front of the light-emitting end face 111 is made flat as a reflecting area 91. In this manner, an optical energy to be emitted from the light-emitting end face 111 toward the main surface of the substrate 11 is efficiently emitted outward.
Patent JP-S5291615-A (JP)
Title: Correcting quality of printed characters in printer
Inventor: KOUNO KENJI
IPC: G06K15/10
Filed: 1976-01-28
Abstract: PURPOSE: To prevent resolution failure in a printed character by adjusting the CRT brightness to thereby change dot diameter depending on whether the character is fat or thin type. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H02189159-A (JP)
Title: Coating method for aerosol
Inventor: MATSUNAGA MASABUMI
IPC: A61M11/00
Filed: 1989-01-17
Abstract: PURPOSE:To improve coating efficiency by reducing the occurrence of bound of aerosol particles by a method wherein solvent steam is present in aerosol, a substance to be coated is cooled, aerosol particles are adhered on dewdrops, generated resulting from formation of dew of steam, e.g. a solvent, on the surface of the substance to be coated, or a liquid film by means of a line of electric force, and thereafter, the solvent is vaporized. CONSTITUTION:Steam generated through gasification of a solvent is contained in aerosol. A cooling board 25 connected to a cooling device 23 is situated below a coating part, a substance Oa to be coated is placed thereon through an earthed plate 27 to cool the substance to be coated, and the temperature of the substance to be coated is by means of the temperature of solvent steam at the coating part. Reduction of the temperature causes solvent steam to produce dew Sc formed on the surface to be coated. Particles R carried by carrier gas are adhered on the dewdrops generated resulting from formation of the dew and accelerated by a line of electric force emitted toward the substance Oa to be coated from an electrode 26 for application of static electricity, and the line of electric force is collided with the surface of the substance to be coated. Movement energy of the particles is absorbed by liquid of the dewdrops, the occurrence of bound is reduced, and the particles are effectively adhered on the dewdrops by means of electrostatic attractive force. When a number of dewdrops are gathered, they form a liquid filmform substance Sf with which the whole surface of the substance to be coated is covered, and the occurrence of bound of the particles can be further reduced.
Patent JP-S59135667-A (JP)
Title: Optical disk record reproducing device
Inventor: KAWAKAMI MINORU
IPC: G11B17/04
Filed: 1983-01-21
Abstract: PURPOSE:To attain miniaturization and to attain surely and simply control with high accuracy by providing the carrying direction of a pickup feeding mechanism in shifting by a prescribed angle to the loading direction. CONSTITUTION:A laser irradiating through-hole 352 positioned in the loading direction before and on the way of disc loading is formed to a rotating disk 35 at the center to the outer circumferential direction. Then, this through-hole 352 is tilted by a prescribed angle to the loading direction because the projection 351 of the rotating disk 35 is guided by a guide groove 202 after disk loading and rotated and descended counterclockwise. In positioning the through-hole 352 for loading in the loading direction or nearly othogonal direction conventionally, the through-hole 352 is formed slantly to the loading direction to the loading mechanism decided by the shape of a disk 33 and a pickup 32, allowing to miniaturize the size.
Patent JP-S5292207-A (JP)
Title: Equipment for recovering waste oil
Inventor: TAKEDA SEIJI
IPC: C10G29/12
Filed: 1976-01-30
Abstract: PURPOSE: An equipment is characterized by the function of rapid separation and recovery of the fine solids without leaving radioactive waste untreated because of the reaction of waste oil with hydrogen fluoride to have them solidified in the suspension of the basic orgenic compounds. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H05198100-A (JP)
Title: Information recording and reproduction device using optical recording medium
Inventor: OKADA SHINICHI
IPC: H03M13/03
Filed: 1992-01-21
Abstract: PURPOSE:To reproduce medium information with high line recording density by providing a data conversion table and composing a pattern after conversion of at least one '0' and an even number of successive '1's. CONSTITUTION:The pattern of digital recording information after conversion consists of at least one '0' and an even number of successive '1's. This device has a converting means 10 as the data conversion table wherein the data after conversion consist of patterns of a specific session and a session consisting of at least one '0' and an even number of successive '1's. Then a data modulating means 6 outputs '0' as its initial output signal and inverts the output signal when the bit information of the data after data conversion is '1'. If error data is detected in digital data, its array is corrected, but when not, the digital data are outputted as they are from an error correcting circuit. Thus, separation and extraction are performed with one threshold level at the time of reproduction and information reproduction is carried out by using the recording medium with high line recording density.
Patent JP-S59135705-A (JP)
Title: Resin magnet material
Inventor: OSEKO HISAAKI
IPC: H01F1/113
Filed: 1983-01-24
Abstract: PURPOSE:To obtain an anisotropic resin magnet with excellent magnetic characteristics by mixing ferrite powder composed of a mixture of ferrite fine powder of average particle diameter 0.5-1.5mum and ferrite coarse powder of average particle diameter 30-250mum and synthetic resin. CONSTITUTION:Hard ferrite powder, such as barium ferrite and strontium ferrite, and their mixture are used as ferrite powder. Powder of average particle diameter 0.5-1.5mum is usually used as fine powder and especially a single magnetic domain particle is preferable. Powder of average particle diameter 30- 250mum is usually used as coarse powder and especially a multiple magnetic domain particle, whose average diameter is 100-200mum and which is oriented to one direction, is preferable. The mixing ratio of the fine powder and the coarse powder is usually in the range of 1:0.4-1:4 by weight ratio but especially the range of 1:0.7-1:1.2 is preferable. 88-96wt% of the ferrite and 12-4wt% of resin are mixed and pellet whose diameter is around 3mm. is obtained.
Patent JP-S60155062-A (JP)
Title: Mechanical seal device
Inventor: FUJIO KATSUHARU
IPC: F16J15/34
Filed: 1984-01-20
Abstract: PURPOSE:To improve airtightness, pressure resistance, and heat resistance by giving heat resistance and pressure resistance to one side of a multiple-seal packing and airtightness to the other side with priority and applying a pre-load via a spring unit in a mechanical seal device. CONSTITUTION:A Teflon packing 11 abounds in heat resistance and pressure resistance, and an O-ring 10 abounding in airtightness is provided on its outside. The packing presser 13 of the packing 11 is applied with a pre-load by a spring unit 16 deformed when the temperature changes. Accordingly, the seal effect is improved by the packing when the pressure rises, a pre-load is applied by the spring unit when the temperature changes, thus a mechanical seal device excellent in airtightness, pressure resistance, and heat resistance can be obtained.
Patent JP-H01187145-A (JP)
Title: Image formation apparatus
Inventor: NAKAGAWA TAMOTSU
IPC: G03B27/62
Filed: 1988-01-19
Abstract: PURPOSE:To prevent stain on a white platen roller and to obtain a copy image of high image quality by disposing a white platen roller shaped like an inverted- crown in such a manner so as not to contact a platen glass. CONSTITUTION:A white platen roller 4 is disposed opposite to a platen glass 3 which is an image reading surface of an optical unit 2 through a clearance 5. By this arrangement, the white plate roller 4 is kept from being stained by a stain adhering to the platen glass 3. Further, as the contacting force of the white platen roller 4 with a document is decreased, there causes no 'wrinkling' in the document, which is caused by pressing the document by the white platen roller 4. On the other hand, the white platen roller 4 is shaped like an inverted-crown, that is, shaped in such a manner that the outside diameter of the central portion is smaller than the outside diameter of both end portions for the equivalent to the slackening amount, whereby a clearance 5 between the platen glass 3 and the platen roller 4 can be made uniform so as to prevent contact between the white platen roller 4 and the platen glass 3 due to slackening. Thus, the white platen roller can be prevented from staining.
Patent JP-H05198707-A (JP)
Title: Manufacture of semiconductor device
Inventor: TAKADO TSUMORU
IPC: H01L21/56
Filed: 1992-01-22
Abstract: PURPOSE:To prevent the generation of bubbles by previously putting resin into a lower metal mold and by again injecting resin there after. CONSTITUTION:A solid irreversible thermosetting resin A2 is put into the lower metal mold 1 of a sealing metal mold. The lower metal mold 1 is heated so that the resin A2 put into a cavity is liquefied. A lead frame 3 having a semiconductor elements 6 electrically bonded to an outer lead by a metal small-gage wire 5 on the island 4 of the frame 3 is placed on the lower metal mold 1. Then, an upper metal mold 7 is closed and sealing resin B10 is injected with pressure from a gate 9 into the cavity 8. At the point of time when the press fit is ended, the sealing resin A2 and resin B10 are heated and the sealed lead frame 3 and the resin of the gate 9 part are removed after the resin is hardened. When the resin is previously put into the cavity of the rear face part of the lead frame island where bubbles are easy to generate, it is possible to prevent the generation of the bubbles.
Patent JP-H10210303-A (JP)
Title: Image-forming system
Inventor: FUKUSHIMA TAMOTSU
IPC: H04N1/44
Filed: 1997-01-21
Abstract: PROBLEM TO BE SOLVED: To obtain a security system in which even a digital copying machine without an image discrimination function prevents an illegal copying act and an illegal image processing act as to a copy inhibit original set by the user and is able to inform the illegal act to others. SOLUTION: A digital copying machine receiving a request for image processing, the machine sends the image requested for processing to a copying machine having an image discrimination function (S82). When the copying machine receiving the discrimination request discriminates it that the image processing is to be applied to a copy-inhibited image, the copying machine stores discrimination history information, including a discrimination result to a memory and returns the discrimination result to the digital copying machine which is the request source machine (S83).  The digital copying machine being the request destination or the digital copying machine being the request source transfers the discrimination history information, in response to a transfer request of the discrimination history information from other digital copying machine, a central image-forming forming management equipment or a host computer of a service center or automatically (S97, S98).
Patent JP-S62166747-A (JP)
Title: Commutator motor
Inventor: YAMAGUCHI AKIRA
IPC: H02K27/04
Filed: 1986-01-20
Abstract: PURPOSE:To improve the air efficiency and cooling efficiency by providing multiple convexes axially, which constitute the vibration flue, along the outside circumference of a bracket. CONSTITUTION:Multiple convexes 8 are provided axially on the outside circumference of a bracket 5b which project outwards. A ventilation flue 7 is formed by this convex 8 and a stator 1. When the suction air is sucked into the inside of a commutator motor through a louvre 6a of a bracket 5A, it passes through the air gap between the stator 1 and a rotor 2 as well as through the ventilation flue 7 between the stator 1 and a bracket 5b and exhausted from a louvre 6b of the bracket 5b. In this way, by providing multiple convexes on the outside circumference of the bracket 5b, the ventilating cross section is so extended that the air efficiency and cooling efficiency can be improved.